problems with cdrecord3.01a07/08

Hallo everyone,

have tried to blank a CD-RW 700MB with this Command:
cdrecord dev=2,3,0 speed=8 blank=fast/disk
in Terminal and with BurnItNow EXT.
Both variants are freezing Haiku after 10 Sekonds.
Mouse and Keyboard don't responce and no KDL-Message.
Haiku hrev45410 and a LG gh22LS50 DVD-Burner SATA
Anyone here with the same Problem???